Luminescence and energy transfer of color-tunable Lu2MgAl4SiO12:Eu2+,Ce3+,Mn2+ phosphors

Achieving highly thermostable red emission in singly Mn2+-doped BaXP2O7 (X = Mg/Zn) via self-reduction

“…[11][12][13] Compared with the rare earth ion activated phosphors, the Mn 2+ -doped ones possess a great advantage, since they have abundant sources and are cheap. 14 Recent examples of the Mn 2+ -doped materials to be used as red phosphors are as follows: Lu 2 MgAl 4 SiO 12 :Mn 2+ (623 nm), 15 K 7 ZnSc 2 B 15 O 30 :Mn 2+ (675 nm) 16 and MgSiN 2 :Mn 2+ (625 and 692 nm), 17 which show promising applications in LEDs for lighting or horticulture.…”

Luminescence properties, energy transfer and thermal stability of white emitting phosphor Sr3(PO4)2:Ce3+/Tb3+/Mn2+ for white LEDs

“…8 , and the calculated lifetimes were also listed in this figure. All the curves can be well fitted to a second-exponential function as follows 21 Where I ( t ) is the luminescence intensity, A 1 and A 2 are fitting consiants, t is the time, and τ 1 and τ 2 are the lifetimes of the exponential component. It can be seen from Fig.…”

Achieving Multicolor Anti‐Counterfeiting via Simultaneous X‐Ray and UV/Blue Excitation in Ca2YMgScSi3O12: Mn2+

“…[28][29][30] Although high Mn 2+ concentration will lead to the formation of Mn 2+ -Mn 2+ pairs, it is noteworthy that the spectral red-shift caused by the exchange interaction between paramagnetic ions such as Mn 2+ -Mn 2+ pairs should be very small (typically <20 nm), and the corresponding lifetime will be shortened due to the relaxation of the spin selection rule. [14,[31][32][33][34] The massive red-shift of (720 nm) relative to yellow (576 nm) suggests that the deep-red emission cannot be attributed to the 4 T 1 (G) → 6 A 1 (S) transitions of Mn 2+ -Mn 2+ pairs. In addition, the PL decay curve of CYMSS: 0.05Mn 2+ under 463 nm excitation is shown in Figure 3b.…”